内螺丝内螺纹internal: adj. 1.内的,内部的 (opp. external ...thread: n. 1.线;细丝;〔英国〕麻纱,〔美国〕棉纱;纤维。 ...thread internal: 螺距cnc grinder for internal thread: 数控内螺纹磨床internal rope thread: 内圆牙螺纹下载手机词典可随时随地查词查翻译